Removal of contaminants from organic compositions

Details Removal of contaminants from organic compositions Removal of contaminants from organic compositions

1983-01-12

1984-08-14

Gantz, Delbert E.

Mineral oils: processes and products

Refining

Sulfur removal

208221, 208222, 208238, 208251R, 208252, 208254R, C10G 2928, C10G 1708, C10G 2102

Patent

active

044655894

ABSTRACT:
Metals, nitrogen and/or sulfur, particularly vanadium, nickel and nitrogen, are removed from organic compositions, particularly heavy hydrocarbon oils, by contacting the organic composition with a methylating agent, preferably dimethyl sulfate, under conditions sufficient to form a precipitate, including the contaminants, and separating the precipitate from the organic composition as by filtration, decantation, and the like. In another embodiment of the present invention, the treatment with the methylating agent is carried out in conjunction with treatment with an acid gas and water or a solvent, such as a combination of carbon dioxide and water.

REFERENCES:
patent: 2846358 (1958-08-01), Bieber et al.
patent: 2906693 (1959-09-01), Donaldson
patent: 3016349 (1962-01-01), Oswald et al.
patent: 3159571 (1964-12-01), Reman et al.
patent: 3309309 (1967-03-01), Hess
patent: 3481865 (1969-12-01), Samuels
patent: 3511774 (1970-05-01), Long et al.
patent: 3661771 (1972-05-01), Havens
patent: 4191639 (1980-03-01), Audeh et al.
patent: 4332676 (1982-06-01), Baset

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